jsp注册表单错误 [英] Error in jsp registration form
本文介绍了jsp注册表单错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
作为jsp技术的新手。
如何在jsp中比较密码和确认密码而不用javascript。
我在申请表上张贴代码jsp。
1）。 SignIn logic.jsp
<％ -
文档：SignInlogic
创建日期：2017年7月25日，9 ：58：57 AM
作者：ttkau
- ％>
<％@ page contentType =text / htmlpageEncoding =UTF-8％>
<！DOCTYPE html>
< html>
< head>
< meta http-equiv =Content-Typecontent =text / html; charset = UTF-8>
< title>< / title>
< / head>
< body>
<％@ page import =java.sql。*; ％GT;
<％
response.setContentType（text / css）;
连接con = null;
语句stmt = null;
ResultSet rs = null;
final String Db_User =root;
final String Db_pass =pitech2017;
final String db_url =jdbc：mysql // localhost：3306 / registration;
final String jdbc_url =com.mysql.jdbc.Driver;
String user_Name = request.getParameter（txtName）;
String pass_code = request.getParameter（txtpass）;
try {
Class.forName（jdbc_url）;
con = DriverManager.getConnection（db_url，Db_User，Db_pass）;
字符串login_query =选择名称，来自注册的密码，其中name ='+ user_Name +'和password ='+ pass_code +';
stmt = con.createStatement（）;
if（rs.next（））
{
String user = rs.getString（name）;
String passw = rs.getString（password）;
String e_maill = rs.getString（email）;
if（user_Name.equals（user）&& pass_code.equals（passw））
{
out.println（< a href ='welcome.jsp'> Welcome< ; / A>中）;
out.println（welcome+ e_maill）;
}
}
} catch（例外e）{
e.printStackTrace（）;
}
％>
< / body>
< / html>
2） SignupLogic.jsp
response.setContentType（text / html）;
PreparedStatement ps = null;
语句st = null;
ResultSet rs = null;
字符串名称，邮件，mobile_no，密码，confirm_pass;
// String value1，value2;
final String jdbc_url =com.mysql.jdbc.Driver;
final String Db_User =root;
final String Db_pass =pitech2017;
final String db_url =jdbc：mysql // localhost：3306 / register;
name = request.getParameter（txtname）;
mail = request.getParameter（txtEmail）;
mobile_no = request.getParameter（txtmobile）;
password = request.getParameter（txtpassword）;
confirm_pass = request.getParameter（txtconfirmpassword）;
try
{
Class.forName（jdbc_url）;
Connection connect = DriverManager.getConnection（db_url，Db_User，Db_pass）;
out.println（建立连接）;
st = connect.createStatement（）;
rs = st.executeQuery（从注册中选择名称，其中name ='+ name）;
boolean flag = false;
while（rs.next（））
{
if（name.equals（rs.getString（1）））
{
flag = true;
out.println（< a href ='error.html'>再次注册！< / a>）;
}
else
{
字符串查询=插入注册（名称，电子邮件，mobileNo，密码，confirmPass）值（？，？，？，？，？） ;
connect = DriverManager.getConnection（db_url，Db_User，Db_pass）;
ps = connect.prepareStatement（query）;
ps.setString（1，name）;
ps.setString（2，mail）;
ps.setString（3，mobile_no）;
ps.setString（4，密码）;
ps.setString（5，confirm_pass）;
if（password.equals（confirm_pass））
{
ps.executeUpdate（）;
out.println（用户已注册）;
out.println（< a href ='SignIn.jsp'> Login<）;
}
其他
out.println（< a href ='error.html'>密码不匹配< / a>）;
}
}
}
catch（ClassNotFoundException e）
{
e.printStackTrace（）;
}
catch（SQLException e）{
e.printStackTrace（）;
}
％>
< / body>
< / html>
3）Register.jsp
<％ -
文件：注册
创建时间：2017年7月24日上午11:48:15
作者：ttkau
- ％>
<％@ page contentType =text / htmlpageEncoding =UTF-8％>
<！DOCTYPE html>
< html>
< head>
< meta http-equiv =Content-Typecontent =text / html; charset = UTF-8>
< title>注册< / title>
< / head>
< body>
< form action =SignUpLogic.jspmethod =post>
< h1>< center> 注册< / center> < / h1>
< Center>
< table style =width：50％>
< tr>
< th>< / th>
< / tr>
< tr>
< td>输入姓名< / td>
< td>< input type =textname =txtnamerequired =required/>< / td>
< / tr>
< tr>
< td>电子邮件< / td>
< td>< input type =textname =txtEmailrequired =requiredpattern =[a-z0-9 ._％+ - ] + @ [a-z0-9。 - ] + \ [AZ] {2,3} $>。< / TD>
< / tr>
< tr>
< td>移动电话号码< / td>
< td>< input type =textname =txtmobilerequired =requiredpattern ='^ \ +？\d {0,12}'/> < / TD>
< / tr>
< tr>
< td>密码< / td>
< td>< input type =passwordname =txtpasswordrequired =required/>< / td>
< / tr>
< tr>
< td>确认密码< / td>
< td>< input type =passwordname =txtconfirmpasswordrequired =required/>< / td>< / tr>
< tr>
< td colspan =3>
< input type =submitvalue =Register/>
< / td>
< / tr>
< / table>
< / center>
< / form>
< / body>
< / html>
4）。 SignIN.jsp
<％ -
文件：SignIn
创建日期：2017年7月24日，1 ：39：00 PM
作者：ttkau
- ％>
<％@ page contentType =text / htmlpageEncoding =UTF-8％>
<！DOCTYPE html>
< html>
< head>
< meta http-equiv =Content-Typecontent =text / html; charset = UTF-8>
< title> JSP页< / title>
< / head>
< body>
< form action =SignInlogic.jspmethod =post>
< center>
< table style =width：50％;>
< tr>
< td>
< input type =textname =txtNameplaceholder =输入useramerequired =required/>
< / td>
< / tr>
< tr>
< td>
< input type =passwordname =txtpassplaceholder =输入密码required =required/>
< / td>
< / tr>
< tr>
< td>
< input type =submitvalue =登录/>
< / td>
< / tr>
< / table>
< / center>
< / form>
< / body>运行此网络项目后
< / html>
：
执行注册页面时，没有插入数据的结果。
当我们执行signIn页面时显示无法编译的源代码java文件
我尝试过的事情：
我还没有尝试过任何新的东西，如jsp
解决方案
>< / td>
< / tr>
< tr>
< td>手机号< / td>
< td>< input type =textname =txtmobilerequired =requiredpattern ='^ \ +？\d {0,12}'/>< / td>
< / tr>
< tr>
< td>密码< / td>
< td><输入类型=密码名称=txtpasswordrequired =required/>< / td>
< / TR>
< tr>
< td>确认密码< / td>
< td>< input type =passwordname =txtconfirmpasswordrequired =required/>< / td>< / tr>
< tr>
< td colspan =3>
< input type =submitvalue =Register/>
< / td>
< / tr>
< / table>
< / center>
< / form>
< / body>
< / html>
4）。 SignIN.jsp
<％ -
文件：SignIn
创建日期：2017年7月24日，1 ：39：00 PM
作者：ttkau
- ％>
<％@ page contentType =text / htmlpageEncoding =UTF-8％>
<！DOCTYPE html>
< html>
< head>
< meta http-equiv =Content-Typecontent =text / html; charset = UTF-8>
< title> JSP页< / title>
< / head>
< body>
< form action =SignInlogic.jspmethod =post>
< center>
< table style =width：50％;>
< tr>
< td>
< input type =textname =txtNameplaceholder =输入useramerequired =required/>
< / td>
< / tr>
< tr>
< td>
< input type =passwordname =txtpassplaceholder =输入密码required =required/>
< / td>
< / tr>
< tr>
< td>
< input type =submitvalue =登录/>
< / td>
< / tr>
< / table>
< / center>
< / form>
< / body>运行此网络项目后
< / html>
：
执行注册页面时，没有插入数据的结果。
当我们执行signIn页面时显示无法编译的源代码java文件
我尝试了什么：
我还没有尝试过任何新的东西，如jsp
sir ! i have written online registration form in jsp !
as i m new to jsp technology .
how i can compare password and confirm password in jsp without javascript.
I m posting code jsp for application form.
1). SignIn logic.jsp
<%--
Document : SignInlogic
Created on : 25 Jul, 2017, 9:58:57 AM
Author : ttkau
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
<%@page import="java.sql.*;" %>
<%
response.setContentType("text/css");
Connection con = null;
Statement stmt = null;
ResultSet rs = null;
final String Db_User="root";
final String Db_pass="pitech2017";
final String db_url="jdbc:mysql//localhost:3306/registration";
final String jdbc_url="com.mysql.jdbc.Driver";
String user_Name = request.getParameter("txtName");
String pass_code = request.getParameter("txtpass");
try {
Class.forName(jdbc_url);
con = DriverManager.getConnection(db_url,Db_User,Db_pass);
String login_query = "select name,password from signup where name='"+user_Name +"' and password='"+pass_code+"'";
stmt = con.createStatement();
if(rs.next())
{
String user = rs.getString("name");
String passw = rs.getString("password");
String e_maill = rs.getString("email");
if(user_Name.equals(user)&&pass_code.equals(passw))
{
out.println("<a href='welcome.jsp'>Welcome</a>");
out.println("welcome"+e_maill);
}
}
} catch (Exception e) {
e.printStackTrace();
}
%>
</body>
</html>
2) SignupLogic.jsp
response.setContentType("text/html");
PreparedStatement ps = null;
Statement st= null;
ResultSet rs = null;
String name, mail,mobile_no,password,confirm_pass;
// String value1,value2;
final String jdbc_url="com.mysql.jdbc.Driver";
final String Db_User="root";
final String Db_pass="pitech2017";
final String db_url="jdbc:mysql//localhost:3306/register";
name = request.getParameter("txtname");
mail = request.getParameter("txtEmail");
mobile_no = request.getParameter("txtmobile");
password = request.getParameter("txtpassword");
confirm_pass = request.getParameter("txtconfirmpassword");
try
{
Class.forName(jdbc_url);
Connection connect = DriverManager.getConnection(db_url,Db_User,Db_pass);
out.println("Connection Established");
st = connect.createStatement();
rs = st.executeQuery("select name from signup where name='"+name);
boolean flag= false;
while(rs.next())
{
if(name.equals(rs.getString(1)))
{
flag = true;
out.println("<a href='error.html'>Register Again!</a>");
}
else
{
String query = "insert into signup(name,email,mobileNo,password,confirmPass) values(?,?,?,?,?)";
connect = DriverManager.getConnection(db_url,Db_User,Db_pass);
ps = connect.prepareStatement(query);
ps.setString(1, name);
ps.setString(2, mail);
ps.setString(3, mobile_no);
ps.setString(4, password);
ps.setString(5, confirm_pass);
if(password.equals(confirm_pass))
{
ps.executeUpdate();
out.println("User is registered");
out.println("<a href='SignIn.jsp'>Login<");
}
else
out.println("<a href='error.html'>Passwords does not match</a>");
}
}
}
catch(ClassNotFoundException e)
{
e.printStackTrace();
}
catch (SQLException e) {
e.printStackTrace();
}
%>
</body>
</html>
3)Register.jsp
<%--
Document : Register
Created on : 24 Jul, 2017, 11:48:15 AM
Author : ttkau
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Registration</title>
</head>
<body>
<form action="SignUpLogic.jsp" method="post">
<h1><center>Registration</center></h1>
<Center>
<table style="width: 50%">
<tr>
<th></th>
</tr>
<tr>
<td>Enter Name</td>
<td><input type="text" name="txtname" required="required"/></td>
</tr>
<tr>
<td>Email</td>
<td><input type="text" name="txtEmail" required="required" pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,3}$"></td>
</tr>
<tr>
<td>Mobile No.</td>
<td><input type="text" name="txtmobile" required="required" pattern='^\+?\d{0,12}'/> </td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="txtpassword" required="required"/></td>
</tr>
<tr>
<td>Confirm Password</td>
<td><input type="password" name="txtconfirmpassword" required="required"/></td></tr>
<tr>
<td colspan="3">
<input type="submit" value="Register"/>
</td>
</tr>
</table>
</center>
</form>
</body>
</html>
4). SignIN.jsp
<%--
Document : SignIn
Created on : 24 Jul, 2017, 1:39:00 PM
Author : ttkau
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<form action="SignInlogic.jsp" method="post">
<center>
<table style="width: 50%;">
<tr>
<td>
<input type="text" name="txtName" placeholder="Enter userame" required="required"/>
</td>
</tr>
<tr>
<td>
<input type="password" name="txtpass" placeholder="Enter password" required="required"/>
</td>
</tr>
<tr>
<td>
<input type="submit" value="Login"/>
</td>
</tr>
</table>
</center>
</form>
</body>
</html>
after running this web project:
when signup page is executed , there is not result of inserting data.
when we execute signIn page it shows the uncompilable source code java file
What I have tried:
I have not tried yet anything as i m new to jsp
解决方案
"></td> </tr> <tr> <td>Mobile No.</td> <td><input type="text" name="txtmobile" required="required" pattern='^\+?\d{0,12}'/> </td> </tr> <tr> <td>Password</td> <td><input type="password" name="txtpassword" required="required"/></td> </tr> <tr> <td>Confirm Password</td> <td><input type="password" name="txtconfirmpassword" required="required"/></td></tr> <tr> <td colspan="3"> <input type="submit" value="Register"/> </td> </tr> </table> </center> </form> </body> </html>
4). SignIN.jsp
<%-- Document : SignIn Created on : 24 Jul, 2017, 1:39:00 PM Author : ttkau --%> <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <form action="SignInlogic.jsp" method="post"> <center> <table style="width: 50%;"> <tr> <td> <input type="text" name="txtName" placeholder="Enter userame" required="required"/> </td> </tr> <tr> <td> <input type="password" name="txtpass" placeholder="Enter password" required="required"/> </td> </tr> <tr> <td> <input type="submit" value="Login"/> </td> </tr> </table> </center> </form> </body> </html>
after running this web project:
when signup page is executed , there is not result of inserting data.
when we execute signIn page it shows the uncompilable source code java file
What I have tried:
I have not tried yet anything as i m new to jsp
这篇关于jsp注册表单错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
